At approximately 12 months of age, which vaccines are commonly administered?

• A. MMR, Varicella, and HepA
• B. DTaP booster only
• C. HepB final dose at 24 months
• D. Influenza vaccine is given only at birth

Answer: (A)

At around one year, the vaccines that are commonly started are MMR, Varicella, and Hepatitis A. MMR and Varicella are two live vaccines given at 12–15 months to ensure a strong immune response after maternal antibodies wane, and they’re often given together to limit visits. Hepatitis A is typically started at 12 months, with a second dose given 6–18 months later to complete protection.

The other options don’t align with this age. A DTaP booster is scheduled later, around 15–18 months, not at 12 months. The Hepatitis B series is usually completed by 6–18 months, not requiring a final dose at 24 months. Influenza vaccine is given annually starting at 6 months, not only at birth. So the combination most commonly given around 12 months is MMR, Varicella, and HepA.